Feem ntau ntawm cov khoom siv thauj khoom noj khoom haus siv ntawm peb cov tshuab khoom noj ua ke feem ntau yog dawb thiab xiav, tshwj xeeb tshaj yog siv cov xov xa xiav ntawm qee cov khoom siv nplej zom. Nws puas yog vim qhov zoo ntawm lub conveyor xiav? Lossis puas muaj cov yam ntxwv ntawm kev lag luam? Cia' s saib dab tsi yog yuav mus.
Vim li cas cov zaub mov xa khoom siv dawb lossis xiav?
Jul 04, 2021
Xa kev nug